FR3128881A1 - Sunscreen composition including organic UV filters and environmentally friendly oily copolymers - Google Patents

Abstract

Sun composition comprising: - at least one lipophilic organic UV screening agent, - at least one lipophilic organic UV screening agent solubilizing agent, - at least one biodegradable copolymer obtained by copolymerization reaction from at least one vegetable oil, as well as its use for protect the skin and skin appendages from UV radiation.

Description

Sunscreen composition including organic UV filters and environmentally friendly oily copolymers

Field of invention

The present invention relates to a composition, advantageously cosmetic or dermatological, comprising organic filters and oily copolymers that are biodegradable and respectful of the environment and human skin.

Prior state of the art

Ultraviolet (UV) radiation consists of light with a wavelength between 100 nm and 400 nm, traditionally divided into 3 subgroups: UV-A (400-315 nm), UV-B (315-280 nm) and UV-C (280-100 nm). Short-wavelength UV-C is the most energetic and harmful UV. They are filtered by the ozone layer of the atmosphere and do not reach the surface of the Earth in considerable quantity. Most of the damage to the skin is caused by UV-A and UV-B, which collectively directly generate molecular disorders (DNA damage, damage to proteins and membrane lipids) and are at the origin of the production of free radicals, in particular reactive oxygen species (ROS or ROS)).

It is therefore necessary to combat the harmful effects of UV radiation, particularly UV-A and UV-B. To this end, sunscreen compositions have been developed to provide photoprotection for areas subject to UV radiation. These compositions are in the form of a lotion, oil, emulsion of the oil-in-water or water-in-oil type, mousse, gel, stick or spray. They contain a cosmetically acceptable carrier and one or more chemical UV filters or mineral screens at various concentrations.

Mineral sunscreens, including zinc oxides and titanium dioxides, are highly effective and safe for human use.

However, they have the disadvantage of drying out the skin and spreading with difficulty, leaving white streaks on the skin that can be very unsightly. The galenic appreciation of compositions based on mineral screens is often mediocre, especially in compositions free of silicones. These technical characteristics of mineral sunscreens may limit users' compliance with products based on this UV light filtration system.

Chemical UV filters are organic compounds. This type of filter has several advantageous aspects. They act synergistically covering different wavelength ranges, providing uniform protection in UV-B and UV-A. Chemical filters can also stabilize each other, and in particular photostabilize each other.

Organic UV filters can further be divided into two classes: hydrophilic organic UV filters and lipophilic organic UV filters. Hydrophilic screening agents, some of the most widely used examples of which are the compounds corresponding to the INCI designations phenylbenzimidazole sulfonic acid and disodium phenyl dibenzimidazole tetrasulfonate, are soluble in aqueous phases, and therefore lend themselves to the formulation of products containing no fatty phase. However, these filters only allow very low SPF values to be obtained if they are not associated with lipophilic filters. In addition, used alone, they make the final composition sticky so that the galenic characteristics are not optimal. Lipophilic organic UV filters are therefore the most commonly used, in particular in emulsions, or in suntan oils.

Despite their effectiveness, lipophilic organic UV filters suffer from the major drawback of being moderately soluble and tending to recrystallize, which reduces photoprotection performance and in the most extreme cases can render the product unusable or cosmetically unacceptable during use. This tendency is particularly pronounced in the case of sunscreen products based on organic UV filters derived from triazines.

Triazine derivatives, in particular 1,3,5-triazine, 1,2,4-triazine and 1,2,3-triazine, correspond to sunscreens authorized by European regulations meeting the following INCI designations: ethylhexyl triazone, tris -biphenyl triazine, diethylhexyl butamido triazone, phenylene bis-diphenyltriazine, or even bis-ethylhexyloxyphenol methoxyphenyl triazine. This category of organic sunscreens has very interesting photoprotective properties and is generally considered not very ecotoxic and safe for human use. However, the presence in these compounds of numerous aromatic rings as well as heterocycles promotes their recrystallization; these crystals can subsequently act as seeds for the recrystallization of other sunscreens, or for other components of the formula.

The solubilization of lipophilic organic UV filters, and in particular triazine derivatives, is obtained by using esters or ethers with a short or medium carbon chain, such as dicaprylyl ether or dicaprylyl carbonate, dibutyl adipate, or even C12-15 alkyl benzoate. Although very effective and versatile as solubilizers, these compounds are not always able to maintain lipophilic organic sunscreens in solution in the fatty phase, and prevent recrystallization of the filters during the life of the product.

There is therefore still an obvious need for new oily components which can ensure the maintenance in solution of organic UV filters over the long term and which are biodegradable, respectful of the environment and well tolerated by human skin.

The Applicant has found that a composition comprising a biodegradable oily copolymer of plant origin makes it possible to meet the needs mentioned above (maintenance in solution of lipophilic organic UV filters, galenic appreciation, biodegradability, skin tolerance).

According to a first aspect, the invention relates to a sunscreen composition comprising:
- at least one biodegradable oily copolymer of plant origin;
- at least one lipophilic organic UV filter.

By “biodegradable oily copolymer of vegetable origin” within the meaning of the invention, is meant a copolymer obtained by copolymerization reaction from at least one vegetable oil.

According to a particular embodiment of the invention, the copolymer is obtained by copolymerization reaction from at least one plant chosen from castor oils, rapeseed oils and tung oils.

For example, the raw materials corresponding to the INCI designations Bis-Isostearoyl Castor Oil/Dimer Dilinoleate Copolymer, Cannabis Seed Oil Dimer Dilinoleyl Esters/Dimer Dilinoleate Copolymer, Castor Oil/Adipic Acid Copolymer, Castor Oil/Dimer Dilinoleic Acid Copolymer, Castor Oil/Sebacic Acid Copolymer, Brassica Campestris/Aleurites Fordi Oil Copolymer as well as their hydrogenated forms can be used in the compositions according to the invention. Sources for these copolymers are listed by the Personal Care Product Council's international buyer's guide (PCPC; https://buyers.personalcarecouncil.org/jsp/BGSearchPage.jsp).

According to a particular embodiment of the invention, the copolymer is obtained by copolymerization reaction from two vegetable oils, chosen from castor oils, rapeseed oils and tung oils, advantageously rapeseed oil and tung oil, hydrogenated or non-hydrogenated, advantageously non-hydrogenated.

According to a particular embodiment of the invention, the copolymer is obtained by copolymerization reaction from at least one triglyceride, advantageously two triglycerides, derived from vegetable oils, advantageously chosen from castor oils, rapeseed oils and tung oils.

By way of example, the raw material PHYTOVIE DEFENSE marketed by the company Tri-K Industries, Inc. and corresponding to the INCI designation Brassica Campestris/Aleurites Fordi Oil Copolymer can be used in the compositions according to the invention.

According to a particular embodiment of the invention, the at least one biodegradable oily copolymer of plant origin represents at least 0.5% by total weight of the composition, advantageously more than 0.5%.

According to a different embodiment, the at least one biodegradable oily copolymer of plant origin represents at least 1% by total weight of the composition, advantageously more than 1%.

In practice, the at least one biodegradable oily copolymer of plant origin represents up to 5%, or even 10% by weight of the composition.

Within the meaning of the invention, "lipophilic organic UV filter" means any organic UV filter, whether UVB, UVA or broad spectrum, which is exclusively soluble in the fatty phase and which, in the case of emulsions, found in the fatty phase after emulsification. Non-limiting examples of lipophilic organic screening agents suitable for use in the compositions according to the invention are the compounds corresponding to the following INCI designations: tris biphenyl triazine, bis ethylhexyloxyphenol methoxyphenyl triazine, diethylhexyl butamido triazone, homosalate, ethylhexyl salicylate, ethylhexyl triazone, polysilicone-15, butyl methoxydibenzoylmethane, diethylamino hydroxybenzoyl hexyl benzoate, drometrizole trisiloxane or mixtures thereof.

According to particular embodiment of the invention, the at least one lipophilic organic UV filter is a sunscreen derived from triazine.

Within the meaning of the invention, by “sunscreen derived from triazine”, is meant a molecule capable of filtering out UV-A and/or UV-B and comprising at least one aromatic heterocycle containing three nitrogen atoms. The triazine isomer can therefore correspond to a 1,2,4-triazine, a 1,3,5-triazine or a 1,2,3-triazine.

According to a particular embodiment of the invention, the at least one sunscreen derived from triazine is chosen from the group comprising 1,2,4-triazines, 1,3,5-triazines and 1,2,3 -triazines.

Advantageously, the at least one sunscreen derived from triazine is chosen from the group comprising the compounds corresponding to the following INCI designations: bis ethylhexyloxyphenol methoxyphenyl triazine, diethylhexyl butamido triazone, ethylhexyl triazone, tris-biphenyl triazine, phenylene bis-diphenyltriazine and bis-isopentylbenzoxazolylphenyl melamine.

Triazine-derived sunscreens suitable for use in a composition according to the invention are available on the market from several suppliers. By way of example, the following raw materials can be used in the composition according to the invention:
- TINOSORB™ S/TINOSORB™ AQUA marketed by BASF and corresponding to the INCI designation bis ethylhexyloxyphenol methoxyphenyl triazine (CAS number: 187393-00-6);
the UVASORB™ HEB marketed by the company SIGMA 3V and corresponding to the INCI designation diethylhexyl butamido triazone (CAS number 154702-15-5);
- TINOSORB™ A2B marketed by BASF and corresponding to the INCI designation tris-biphenyl triazine (CAS no: 31274-51-8);
- UVINUL™ T150 marketed by BASF and corresponding to the INCI designation ethylhexyl triazone (CAS number: 88122-99-0);
- the TRIASORB™ marketed by the company PLANTES & INDUSTRIE and corresponding to the INCI designation phenylene bis-diphenyltriazine (CAS number 55514-22-2);
- UVASORB™ K2A marketed by the company SIGMA 3V and corresponding to the INCI designation bis-isopentylbenzoxazolylphenyl melamine (CAS number 288254-16-0);
- 1,3,5-triazine derivatives corresponding to CAS numbers 2174063-28-4, 2174063-29-5 and 2174063-30-8, described in document EP 3275872;
- 2,4,6-tris(4'-amino diethyl benzalmalonate)-s-triazine, 2,4,6-tris(4'-amino diisopropyl benzalmalonate)-1,3,5-triazine, 2,4,6-tris(dimethyl 4'-amino benzalmalonate)-1,3,5,triazine or 2,4,6-tris(ethyl a-cyano-4-aminocinnamate)-1,3 ,5-triazine. These molecules are described in document EP0507692.

According to a particular embodiment, the composition according to the invention comprises at least two sunscreens derived from different triazines, or even at least three sunscreens derived from different triazines.

Preferably, the composition according to the invention comprises at least the triazine-derived sunscreens corresponding to the following INCI designations: bis-ethylhexyloxyphenol methoxyphenyl triazine, diethylhexyl butamido triazone, and ethylhexyl triazone.

According to a particular embodiment, the at least one sunscreen derived from triazine represents between 2% and 50% by total weight of the composition, advantageously between 5% and 40%, preferably between 10% and 30%.

According to a particular embodiment, the at least one sunscreen derived from triazine represents more than 10% by total weight of the composition, advantageously more than 12%, preferably more than 15%.

It emerges from the above that the at least one sunscreen derived from triazine can represent between 12% and 50% by weight of the composition, or even between 15% and 50%.

According to a particular embodiment, in addition to the at least one triazine-derived sunscreen, the composition according to the invention comprises at least one organic UVA screener, which may be in the aqueous (hydrophilic) and/or oily (lipophilic) phase.

By "organic UVA filter" within the meaning of the invention is meant any organic filter absorbing mainly or exclusively in the UVA.

According to a particular embodiment, the composition according to the invention comprises at least one UV-A sunscreen chosen from the group comprising the compounds corresponding to the following INCI designations: butyl methoxydibenzoylmethane, diethylamino hydroxybenzoyl hexyl benzoate, bis-(diethylaminohydroxybenzoyl benzoyl) piperazine , disodium phenyl dibenzimidazole tetrasulfonate and mixtures thereof.

By way of example, the UV-A filters according to the invention correspond to the raw material Parsol™ 1789 (INCI: butyl methoxydibenzoylmethane) marketed by the company DSM, UVINUL™ A+ (INCI: diethylamino hydroxybenzoyl hexyl benzoate) marketed by the company BASF or the raw material C1332 (INCI: bis-(diethylaminohydroxybenzoylbenzoyl)piperazine; CAS number 919803-06-8) marketed by the company BASF.

Advantageously, the composition according to the invention comprises a UV-A screening agent corresponding to the INCI designation disodium phenyl dibenzimidazole tetrasulfonate, in particular available under the name Neo Heliopan™ AP and marketed by the company SYMRISE.

According to a particular embodiment, the composition according to the invention is free of sunscreens corresponding to the following INCI designations: 4-methylbenzylidene camphor, benzophenone-2, benzophenone-3, ethylhexyl methoxycinnamate and octocrylene.

According to a particular embodiment, the composition according to the invention comprises mineral screens (or inorganic mineral filters), which correspond to metal oxides and/or other compounds that are not easily soluble or insoluble in water, in particular oxides titanium (TiO ₂ ), zinc (ZnO), iron (Fe ₂ O ₃ ), zirconium (ZrO ₂ ), silicon (SiO ₂ ), manganese (for example MnO), aluminum (Al ₂ O ₃ ), or cerium (Ce ₂ O ₃ ), bismuth trioxide (Bi ₂ O ₃ ), or even bismuth oxychloride (BiOCl).

Inorganic mineral filters can also be surface-treated or encapsulated, in order to give them a hydrophilic, amphiphilic or hydrophobic character. This surface treatment may consist in the mineral filters being provided with a thin hydrophilic and/or hydrophobic inorganic and/or organic film.

According to a particular embodiment, the composition according to the invention comprises at least one mineral screen chosen from the group comprising the compounds corresponding to the following INCI designations: zinc oxide, titanium dioxide and their mixtures.

For example, zinc oxide corresponds to the raw material Z-COTE™ LSA and titanium dioxide to the raw material T-Lite™, marketed by BASF.

The lists of UV filters mentioned that can be implemented within the meaning of the present invention are of course given as an indication and not limiting.

Advantageously, the at least one sunscreen and/or mineral screen, with the exception of the lipophilic UV sunscreen(s), represents between 0.1 and 30% by total weight of the composition according to the invention, advantageously between 0 5 and 20%, even more advantageously between 1 and 15%.

According to a particular embodiment, the composition according to the invention also comprises at least one solubilizer for lipophilic organic UV screening agents.

Within the meaning of the invention, the term "solubilizer of lipophilic organic UV screening agents" denotes a compound which makes it possible to solubilize, disperse and/or dissolve at least one lipophilic organic UV screening agent in an effective and lasting manner, that is to i.e. stabilizing it in its solubilized form and preventing or reducing its recrystallization or precipitation in formulation throughout the life of the product (generally, the product should be stable for at least 1 year after opening).

According to a particular embodiment, the composition according to the invention comprises at least one solubilizer for lipophilic organic UV screening agents chosen from the group comprising the compounds corresponding to the following INCI designations: dibutyl adipate, dicaprylyl carbonate, diisopropyl sebacate, caprylyl caprylate/caprate, dicaprylyl ether, coco-caprylate, C _12-15 alkyl benzoate, propylheptyl caprylate, butylene glycol dicaprylate/dicaprate, dipropylene glycol dibenzoate, neopentyl glycol diheptanoate, triheptanoin, C _12-13 alkyl lactate, ethylhexyl benzoate, C _12-15 alkyl lactate, C _12-13 alkyl tartrate, tridecyl salicylate, lauryl lactate, diethyl adipate caprylic/capric triglicerides, diisobutyl adipate, diisopropyl adipate, diethylhexyl adipate, diethylhexyl succinate, propanediol dicaprylate, propylene glycol dicaprylate/dicaprate, isopropyl lauroyl sarcosinate, propylene glycol dibenzoate, hydroxyl dimethoxybenzyl maolnate, phenoxyethyl caprylate, isodecyl salicylate, dimethyl capramide and phenethyl benzoate.

According to one particular embodiment, the composition according to the invention also comprises at least two solubilizers for lipophilic organic UV screening agents chosen from the group comprising the compounds corresponding to the following INCI designations: dibutyl adipate, dicaprylyl carbonate, diisopropyl sebacate, caprylyl caprylate/ caprate, dicaprylyl ether, coco-caprylate, C _12-15 alkyl benzoate, propylheptyl caprylate, butylene glycol dicaprylate/dicaprate, dipropylene glycol dibenzoate, neopentyl glycol diheptanoate, triheptanoin, C _12-13 alkyl lactate, ethylhexyl benzoate, C _12-15 alkyl lactate, C _12-13 alkyl tartrate, tridecyl salicylate, lauryl lactate, diethyl adipate caprylic/capric triglicerides, diisobutyl adipate, diisopropyl adipate, diethylhexyl adipate, diethylhexyl succinate, propanediol dicaprylate, propylene glycol dicaprylate/dicaprate, isopropyl lauroyl sarcosinate, propylene glycol dibenzoate , hydroxyl dimethoxybenzyl maolnate, phenoxyethyl caprylate, isodecyl salicylate, dimethyl capramide and phenethyl benzoate.

According to one particular embodiment, the composition according to the invention comprises at least the solubilizers for lipophilic organic UV screening agents corresponding to the INCI designations: dibutyl adipate, dicaprylyl carbonate and C _12-15 alkyl benzoate.

According to an alternative embodiment, the composition according to the invention comprises at least the solubilizers of lipophilic organic UV screening agents corresponding to the INCI designations: dicaprylyl carbonate and diisopropyl sebacate.

According to a particular embodiment, the solubilizers of lipophilic organic UV screening agents represent between 5% and 80% by total weight of the composition, advantageously between 10% and 70%, preferably between 15% and 60%.

Solubilizers capable of being implemented in a composition according to the invention are available on the market from several suppliers. By way of example, the following raw materials can be used in the composition according to the invention:
- Several raw materials from the CETIOL™ range marketed by BASF, in particular CETIOL™ RLF, CETIOL™ B, CETIOL™ CC, CETIOL™ O, CETIOL™ C5, CETIOL™ AB, CETIOL™ SENSOFT corresponding respectively to the INCI designations caprylyl caprylate/caprate, dibutyl adipate, dicaprylyl carbonate, dicaprylyl ether, coco-caprylate, C12-15 alkyl benzoate, propylheptyl caprylate;
the DUB™ DIS, DEA, DIBA, ZENOAT marketed by the company STEARINE DUBOIS corresponding respectively to the INCI designations diisopropyl sebacate, diethyl adipate, diisobutyl adipate and propanediol dicaprylate;
- MIGLYOL™ 8810 and T-C7 marketed by the company IOI Oleo GmbH corresponding respectively to the INCI designations butylene glycol dicaprylate/dicaprate and triheptanoin;
- Lexsolv™ A marketed by the company INOLEX corresponding to the INCI designations dipropylene glycol dibenzoate and neopentyl glycol diheptanoate;
- The COSMACOL™ ELI, ETI, ESI and LL marketed by SASOL and corresponding respectively to the INCI designations C12-13 alkyl lactate, C12-13 alkyl tartrate, tridecyl salicylate and lauryl lactate;
- The Ceraphyl™ 41 ester marketed by the company ASHLAND and corresponding to the INCI designations C12-C15 alkyl lactate;
- Finsolv™ EB and PG 22 marketed by INNOSPEC and corresponding respectively to the INCI designations, ethylhexyl benzoate and dipropylene glycol dibenzoate;
- The CRODAMOL™ DA, DOA, OSU and PC marketed by the company CRODA and corresponding respectively to the INCI designations diisopropyl adipate, diethylhexyl adipate, diethylhexyl succinate and propylene glycol dicaprylate/dicaprate;
- ELDEW™ SL-205 marketed by the company AJINOMOTO and corresponding to the INCI designation isopropyl lauroyl sarcosinate;
- Lexfeel™ Shine marketed by the company INOLEX and corresponding to the INCI designation propylene glycol dibenzoate;
- TEGOSOFT™ XC and CT marketed by the company EVONIK and corresponding to the INCI designation phenoxyethyl caprylate and caprylic/capric triglicerides;
- RONACARE™ AP marketed by MERCK KGaA and corresponding to the INCI designation hydroxyl dimethoxybenzyl malonate;
- DERMOL™ IDSA marketed by the company Alzo INTL and corresponding to the INCI designation isodecyl salicylate;
- Spectrasolv™ DMDA marketed by Hallstar and corresponding to the INCU designation dimethyl capramide;
- X-TEND™ 226 marketed by the company Ashland and corresponding to the INCI designation phenethyl benzoate.

The composition of the invention can be in all the galenic forms normally used in the cosmetic and dermatological fields and compatible with the formulation of a fatty phase, that is to say, of an O/W emulsion or vice versa. W/O, more or less fluid, or of a multiple emulsion such as for example a triple emulsion (W/O/W or O/W/O), or even in the form of a vesicular dispersion of the ionic type (liposomes ) and/or nonionic, of a two-phase composition devoid of emulsifiers and gelling agents, the immiscible phases of which separate during storage, of foam, of stick, of anhydrous oil, of spray or mist.

According to a particular embodiment, the composition according to the invention comprises between 0.1% and 5% by total weight of the emulsifier composition, advantageously between 0.5% and 3%.

The emulsifiers included in the composition can be any O/W or W/O emulsifier known to those skilled in the art for use in sunscreen compositions.

Within the meaning of the invention, by “O/W emulsifier” is meant any compound having emulsifying properties making it possible to produce oil-in-water emulsions.

Advantageously, the O/W emulsions according to the invention comprise an emulsifier chosen from the following group of compounds identified by their INCI designation: sodium stearoyl glutamate, potassium cetyl phosphate, glyceryl stearate, C _20-22 alkyl phosphate/C _20-22 alkyl alcohols, tribehenin PEG-20 esters, C _14-22 alcohols/ C _12-20 alkyl glucoside, cetearyl alcohol, coco-glucoside, polyglyceryl-6 stearate, polyglyceryl-6 behenate and mixtures thereof. These raw materials are available from several suppliers.

By way of example, the raw materials EMULGIN SG (INCI: sodium stearoyl glutamate; supplier: BASF); EMULIUM 22 (INCI: tribehenin PEG-20 esters; supplier GATTEFOSSE); SENSANOV WR (INCI: C20-22 alkylphosphate/ _C20-22 alkyl alcohols; supplier: SEPPIC); MONTANOV L (INCI: C _14-22 alcohols/ C _12-20 alkyl glucoside), AMPHISOL K (INCI: potassium cetyl phosphate; supplier: DSM), MONTANOV 82 (INCI: cetearyl alcohol/coco-glucoside; supplier: SEPPIC) and TEGO™ Care PBS 6 MB (polyglyceryl-6 stearate and polyglyceryl-6 behenate) can be used in the compositions according to the invention as O/W emulsifiers.

Within the meaning of the invention, by "W/O emulsifier" is meant any compound having emulsifying properties making it possible to produce water-in-oil emulsions.

Advantageously, the W/O emulsions according to the invention comprise PEG-30 dipolyhydroxystearate (INCI), or polyglyceryl-4 diisostearate/polyhydroxystearate/sebacate as emulsifiers. These raw materials are available respectively from CRODA under the trade name Cithrol DPHS and from EVONIK under the trade name Isolan GPS.

According to a particular embodiment, the composition according to the invention has an SPF equal to or greater than 30, advantageously equal to or greater than 50, preferably equal to or greater than 70, or even equal to or greater than 100.

According to a preferred embodiment, the composition according to the invention comprises a UV-A/UV-B protection ratio equal to or greater than 1/3.

Advantageously, the composition according to the invention has a critical wavelength (λc) greater than 370 nm. This value, which is determined by in vitro methods known to those skilled in the art, corresponds to the wavelength for which the integral of the curve of the absorption spectrum starting at 290 nm reaches 90% of the integral between 290 and 400 nm.

According to a particular embodiment, the composition according to the invention may also comprise an SPF "booster", that is to say an agent for enhancing the sun protection factor, and/or a photostabilizer, that is to say an ingredient which makes it possible to increase the SPF or to stabilize the filters, such an ingredient not being considered itself as a sunscreen. For example, we can cite:
- butyloctyl salicylate (INCI), photostabilizer advantageously representing between 0.01% and 10% by total weight of the composition, even more advantageously between 0.1% and 2%. This raw material is, for example, marketed by the company HALLSTAR under the name Hallbrite™ BHB;
- benzotriazolyl dodecyl p-cresol (INCI), photostabilizer advantageously representing between 0.01% and 10% by total weight of the composition, even more advantageously between 0.1% and 2%. This raw material is, for example, marketed by the company BASF under the name of TINOGARD™ TL;
- pongamol (INCI), plant molecule absorbing in UV-A, advantageously representing between 0.5 and 2% by total weight of the composition, even more advantageously of the order of 1%. By way of example, the raw material Pongamia Extract marketed by the company GIVAUDAN can be used in the context of the present invention;
- ethylhexyl methoxycrylene (INCI), photostabilizer, solubilizer and SPF “booster” advantageously representing between 1% and 5% by total weight of the composition. The SolaStay® S1 raw material sold by the company HALLSTAR can be used in the context of the present invention;
- a styrene acrylate copolymer (INCI: styrene/acrylate copolymer), preferably representing between 1% and 10% by total weight of the composition according to the invention. The raw materials SunSpheres® H53 and SunSpheres® PGL Polymer, marketed by the company DOW CHEMICALS, can be used in the context of the present invention;
- diethylhexyl syringylidene malonate (INCI), advantageously representing between 1% and 10% by total weight of the composition. The raw material OXYNET® ST, marketed by the company MERCK, can be used in the context of the present invention;
- a water-dispersible polyester, corresponding to the INCI designations polyester-5 (and) Sodium silicoaluminate, advantageously representing between 1% and 10% by total weight of the composition, in particular EASTMANN AQTM38S Polymer marketed by the company SAFIC-ALCAN;
- an acrylate copolymer having a glass transition temperature of -5° C. to -15° C. as measured by differential scanning calorimetry, said copolymer advantageously representing between 1% and 10% by total weight of the composition. For example, a polymer corresponding to the INCI designation Arylate copolymer, such as the raw material EPITEX 66, marketed by the company DOW CHEMICALS, can be used in the context of the present invention.
- at least one amino acid analogue of mycosporin described in patent applications WO2013181741A1 and WO2021168582A1 and in particular the molecules corresponding to CAS numbers 2699611-33-9, 1629023-04-6, 1509902-01-5, 1629023-01- 3 or the INCI designations methoxyphenylimino dimethylcyclohexene glycine, caprylyloxyphenylamino dimethyltetrahydro benzothiazine carboxylic acid, methoxyphenylimino dimethylhexahydro benzothiazine carboxylic acid, also known as EK™-14, EK™-17 and EK™-20 and EK™-17-3 marketed by ELKIMIA and/or SENSIENT.

According to a particular embodiment, the fatty phase of the composition according to the invention represents between 20% and 70% by total weight of the fatty phase composition, advantageously between 30% and 60%.

Within the meaning of the invention, by “fatty phase”, is meant all the ingredients consisting of lipophilic sunscreens, lipophilic active agents and solubilizers of lipophilic organic UV filters as well as the other lipophilic excipients.

According to a particular embodiment, the aqueous phase of the composition according to the invention represents between 30% and 80% by total weight of the fatty phase composition, advantageously between 40% and 70%.

According to another embodiment, the composition according to the invention may also comprise an extract of the bacterium Arthrobacter agilis , in particular an extract rich in carotenoids, as described in document WO 2014/167247. Advantageously, the composition according to the invention comprises from 0.00001% to 0.1% by total weight of the composition, even more advantageously from 0.0001% to 0.001% of such a dry extract.

In a preferred embodiment, the composition according to the invention further comprises other components which may contribute to internal protection by an action which may consist of DNA protection, a reduction in the immunosuppression induced by UV radiation, an antiradical action or a combined effect of these actions.

The protective action of a preparation according to the invention against oxidative stress or against the effect of free radicals can be further improved if the latter additionally comprises one or more antioxidants, easily selected by the skilled in the art, for example from the following list: totarol, magnolol, honokiol, amino acids and their derivatives, peptides (D and/or L-carnosine) and their derivatives (for example anserine, l hypotaurine, taurine), carotenoids, carotenes (α-carotene, β-carotene, lycopene) and their derivatives, chlorogenic acid and its derivatives, lipoic acid and its derivatives (dihydrolipoic acid), aurothioglucose , propylthiouracil and other thiols (thioredoxin, glutathione, cysteine, cystine, cystamine and their glycosyl, N-acetyl, methyl, ethyl, propyl, amyl, butyl and lauryl, palmitoyl, oleyl, γ-linoleic, cholesterol and glyceryl esters) as well as as salts thereof, dilauryl thiodipropionate, distearyl thiodipropionate, thiodipropionic acid and its derivatives, sulfoximine compounds (buthionine sulfoximine, homocysteine sulfoximine, buthionine sulfones, penta-, hexa- and heptathionine sulfoximine), chelating agents (such as α-hydroxy fatty acids, palmitic acid, phytic acid, lactoferrin), α-hydroxy acids (such as citric, lactic, or malic acid), humic, bile acid, bile extracts, bilirubin, biliverdin, ethylenediamine pentasodium tetramethylene phosphonate and its derivatives, unsaturated fatty acids and their derivatives, vitamin A and its derivatives (vitamin A palmitate), benzoin resin coniferyl benzoate, rutinic acid and its derivatives, α-glycosyl rutin, ferulic acid and its derivatives, furfurylideneglucitol, carnosine, butylhydroxytoluene, butylhydroxyanisole, nordihydroguaiaretic acid, trihydroxybutyrophenone, quercetin, uric acid and its derivatives, mannose and its derivatives, zinc and its derivatives (ZnO, ZnSO ₄ ), selenium and its derivatives (selenomethionine), stilbenes and their derivatives ( stilbene oxide, trans-stilbene oxide).

In a particular embodiment, the composition according to the invention further comprises glycyrrhetinic acid, a derivative or a salt of this acid, or else acetyl dipeptide-1 cetyl ester (INCI) used as anti-inflammatory agents. -inflammatory and globally representing between 0.01% and 2% by total weight of the composition, preferably between 0.1% and 1%.

According to another preferred characteristic of the invention, the cosmetic and/or dermatological composition comprises at least one, or even all of the following constituents exerting a biological activity in vivo on the cells of the skin, lips, hair and/or mucous membranes subjected to UV-A and/or UV-B radiation, respectively:
- an anti-radical agent preserving cell structures, such as for example vitamin E and/or its fat-soluble or water-soluble derivatives, in particular tocotrienol and/or tocopherol, advantageously representing between 0.001 and 10% by total weight of the composition, again more advantageously between 0.02 and 2%, preferably of the order of 0.04%;
- an agent limiting immunosuppression, such as for example vitamin PP, advantageously representing between 0.001 and 1% by total weight of the composition, even more advantageously from 0.01% to 0.3%;
- a protective agent for the p53 protein, such as for example epigallocatechin gallate (EGCG), advantageously representing between 0.001 and 0.1% by total weight of the composition, even more advantageously from 0.005% to 0.05%.

The composition according to the invention may also comprise, in addition, peptide extracts of soya and/or wheat, such as those described in document EP 2 059 230.

In practice, the peptide extracts from soybeans and wheat are derived from an enzymatic hydrolysis of said seeds via peptidases which make it possible to recover peptides with an average size of 700 Daltons. Preferably, the soy peptide extract is the extract identified under CAS number 68607-88-5, just as the wheat peptide extract is the extract identified under CAS number 70084-87-6. Wheat and soy extracts may correspond to the INCI designations Hydrolyzed wheat protein and Hydrolyzed soy protein, respectively.

In a particular embodiment, the peptide extracts of soybean and/or wheat are used together, for example in a weight ratio respectively comprised between 80/20 and 20/80, advantageously comprised between 70/30 and 30/70, of preference equal to 60/40.

In an advantageous embodiment, the soybean and/or wheat peptide extracts are free of synthetic GHK tripeptides (glycyl-histidyl-lysine; INCI: Tripeptide-1). In practice, the peptide extracts of soya and/or wheat representing from 0.01 to 20% by total weight of the composition, advantageously from 0.1% to 10%, even more advantageously from 0.2% to 0.7% .

In an alternative embodiment, the composition according to the invention comprises, in accordance with the teachings of document FR 2 865 398, the combination of at least one amino acid chosen from the group consisting of ectoine, creatine, ergothioneine and/or carnosine, or their physiologically acceptable salts, and mannitol or a mannitol derivative.

Preferably, the composition according to the invention comprises, in a physiologically acceptable medium, the amino acid or one of its salts, alone or as a mixture in proportions of between 0.001% and 10% by total weight of the composition, and preferably between 0.01% and 5%.

The composition according to the present invention preferably comprises, in a physiologically acceptable medium, mannitol or one of its derivatives, in proportions of between 0.01% and 30% by total weight of the composition, advantageously between 0, 1% and 10%.

In a preferred embodiment, the composition according to the invention comprises ectoin and mannitol.

According to a particular embodiment, the composition according to the invention comprises one or more other tanning or self-tanning agents. It can be a self-tanner which reacts with the amino acids of the skin according to a Maillard reaction or via a Michael addition, or else a promoter of melanogenesis or a propigmenting compound which promotes tanning natural to the skin. Such a substance is preferably present in the composition in an amount ranging from 0.01% to 20% by total weight of the composition, advantageously from 0.5% to 15%, even more advantageously from 1% to 8%.

Self-tanning substances can be 1,3-dihydroxyacetone (DHA), glycerolaldehyde, hydroxymethylglyoxal, γ-dialdehyde, erythrulose, 6-aldo-D-fructose, ninhydrin, 5-hydroxy-1 ,4-naphthoquinone (juglone), 2-hydroxy-1,4-naphthoquinone (lawsone), or their combination.

Propigmenting substances can be melanocyte-stimulating hormone (α-MSH), α-MSH peptide analogues, endothelin-1 receptor agonists, opioid µ receptor agonists, cAMP, tyrosinase stimulating agents.

In a particular embodiment, the composition according to the invention further comprises, as a self-tanner, a combination of dihydroxy methylchromonyl palmitate and/or dimethylmethoxy chromanol as well as a lipophilic form of tyrosine.

This combination of active ingredients effectively stimulates tanning. Dihydroxy methylchromonyl palmitate (CAS number: 1387636-35-2) corresponds, for example, to the cosmetic ingredient marketed by MERCK under the name RonaCare® Bronzyl. Dimethylmethoxy chromanol (CAS number: 83923-51-7) corresponds, for example, to the cosmetic ingredient marketed by the company LIPOTEC SA under the name of lipochromone-6.

According to a particular embodiment, dihydroxy methylchromonyl palmitate or dimethylmethoxy chromanol is included in the composition according to the invention in the amount of 0.01% to 10% by total weight of the composition, advantageously from 0.05% to 10% , even more advantageously from 0.1% to 5%, more particularly from 0.1% to 0.5%.

The lipophilic form of tyrosine, within the meaning of the invention, is a tyrosine-based ingredient and has a more pronounced lipophilic nature than tyrosine. The lipophilic form of tyrosine may in particular correspond to oleoyl tyrosine (CAS number: 147732-57-8), which is found, for example, in the liquid cosmetic ingredient TYR-OL, marketed by the company SEDERMA, and which comprises approximately 50% by weight of oleoyl tyrosine in butylene glycol (approximately 30%+approximately 20% oleic acid), or else in the liquid cosmetic ingredient TYR-EXCEL, marketed by the company SEDERMA, which comprises approximately 50 % by weight of oleoyl tyrosine, approximately 20% by weight of oleic acid (CAS No: 112-80-1) and approximately 30% by weight of Luffa cylindrica oil (sponge gourd seed oil; CAS: 1242417-48-6).

According to another embodiment, the lipophilic form of tyrosine corresponds to a vegetable oil in which the tyrosine has been formulated.

According to a particular embodiment, the vegetable oil is oleic sunflower oil, advantageously deodorized. Thus, the raw material OLEOACTIVE TYROSINE BASE HELIANTHUS ANNUS marketed by the company OLEOS, and corresponding to the INCI designations Helianthus annuus seed oil (and) tyrosine (and) glyceryl stearate, can be used in the context of the present invention.

In practice, the lipophilic form of tyrosine, such as in cosmetic ingredients based on oleoyl-tyrosine (advantageously at 50% by weight) or tyrosine formulated in vegetable oil, represents between 0.1% and 10% by total weight of the composition, advantageously between 1 and 3%, even more advantageously between 1% and 1.5%.

The composition according to the invention may also comprise active agents having depigmenting properties, such as for example:
- lysine azeilate, or other derivatives or salts of azelaic acid;
- andrographolide, in particular the extract of Andrographis paniculata corresponding to the INCI designation Andrographis paniculata leaf extract;
- native ascorbic acid (vitamin C) or its derivatives, in particular the derivatives corresponding to the INCI Ascorbyl Glucoside, Ethyl ascorbic acid, Ascorbyl methylsilanol pectinate, Sodium ascorbyl phosphate and Ascorbyl tetraisopalmitate, advantageously ascorbyl glucoside;
- arbutin or a plant extract containing it, in particular bearberry extract corresponding to the INCI designation Arctostaphylos uva-ursi leaf extract;
- glabridin or a plant extract containing it, in particular liquorice extracts corresponding to the INCI designation Glycyrrhiza glabra root extract, Glycyrrhiza inflata root extract, Glycyrrhiza uralensis root extract;
- biomimetic peptides corresponding to the INCI designations hexapeptide 2 and/or nonapeptide-1;
- an aqueous extract of an alga called Palmaria palmata , in particular the extract corresponding to the INCI designation Palmaria palmata extract;
- 4-n-butylresorcinol;
- vitamin PP, also called niacinamide or nicotinamide, and its derivatives;
- or mixtures thereof.

The composition according to the invention may also comprise active agents having healing or regenerating properties such as, for example, an antimicrobial agent chosen from the active agents corresponding to the following INCI designations: copper sulphate, zinc sulphate, sodium hyaluronate, Vitis vinifera (grape) vine extract and mixtures thereof; an extract of the Centella asiatica plant , or the C. asiatica terpenes asiaticoside, madecassic acid and asiatic acid, and mixtures thereof.

The composition according to the invention may also comprise active agents having sebocorrective, keratolytic, sebum-regulating properties and/or anti-acne activity, in order to allow the formulation of sun products treating acne.

For example, the composition according to the invention may comprise an antimicrobial agent chosen from active agents corresponding to the INCI designations propyl gallate, dodecyl gallate, Ginkgo biloba leaf extract, bakuchiol, dihydromyricetin, zinc gluconate, salicylic acid and mixtures thereof.

The composition according to the invention may also comprise at least one ingredient chosen from the following list:
- an agent capable of filtering visible light, in particular blue light;
-an extract of the seaweed Laminaria ochroleuca , Blidingia minima or Laminaria saccharina ;
- an extract of the Zanthoxylum alatum plant;
- panthenol;
- an extract of cade wood;
- a Boldo extract;
- an extract of Meadowsweet;
- an extract of karanja oil from Pongamia glabra ;
- linear paraffins;
- ATP (adenosine-5 tri-phosphate), Gp4G (diguanosine tetraphosphate) or Ap4A (diadenosine tetraphosphate); Or
- an amino acid chosen from the group consisting of decarboxycarnosine, glutamine and their salts.

The composition according to the invention may also comprise adjuvants such as those usually used in the field of cosmetics, such as preservatives, antioxidants, complexing agents, solvents, perfumes, fillers, bactericides, electrolytes, odor absorbers, dyestuffs or even lipid vesicles. The choice of these adjuvants, as well as their concentrations, must be determined so that they do not modify the properties and the advantages sought for the composition of the present invention.

The composition of the invention is in a form suitable for topical administration or application and more particularly for application to the skin, lips, hair and/or mucous membranes.

Thus and in the context of the invention, such a composition is in particular intended for the protection of the skin and/or appendages, in particular the mucous membranes, the lips and the hair, against UV radiation.

The composition of the invention can be in all the pharmaceutical forms normally used in the cosmetic and dermatological fields.

According to a particular embodiment, the viscosity of the composition according to the invention is between 60,000 and 160,000 mPa.s, advantageously between 80,000 and 140,000 mPa.s.

According to the invention, the viscosity is measured at ambient temperature using a Brookfield DV-II+ viscometer (conditions: reading percentage 83.5%, Spindle 6 Speed 6 (M6V6)). Other analogous means for measuring the viscosity of cosmetic compositions are known to those skilled in the art.

According to another particular embodiment, the composition according to the invention is in the form of an O/W emulsion, advantageously stable, which comprises less than 2% by total weight of the emulsifier composition, advantageously less than 1 %, less than 0.5% or even less than 0.1%, preferably free of emulsifier.

A stable composition is, within the meaning of the present invention, a composition having a homogeneous and lasting dispersion of the fatty phase in the aqueous phase, without phase separation, flocculation or formation of aggregates.

Any preservative, authorized or not authorized by the regulations, (appendix V of the European Directive on cosmetic products), suitable for use in cosmetic or dermatological compositions can be implemented in the formulation of a composition according to the invention. .

According to a particular embodiment, the preservatives that can be used in the compositions according to the invention are alkanediols.

Preferably, the preservatives according to the invention are 1,2-alkanediols or 1,3-alkanediols.

According to a particular embodiment, the alkanediol is chosen from the group comprising the compounds corresponding to the following INCI designations: propylene glycol, 1,3-propanediol, 2-methyl-1,3-propanediol, 1,2-pentanediol, 1 ,2-hexanediol, caprylyl glycol, 1,2-decanediol, 2-methyl-2,4-pentanediol and mixtures thereof.

These preservatives are available from several suppliers of cosmetic raw materials.

By way of example, we can cite:
- EVO-100™ marketed by ARCHER DANIELS MIDLAND COMPANY and corresponding to the INCI designation propylene glycol;
- ZEMEA™ marketed by the company DUPONT-TATE & LYLE BIOPRODUCTS and corresponding to the INCI designation 1,2-propanediol;
- DUB DIOL™ marketed by the company STEARINERIE DUBOIS and corresponding to the INCI designations 2-methyl-1,3-propanediol;
- Hydrolite-5™, Hydrolite-6™, Hydrolite-8™ and SymClariol 344028™ marketed by the company SYMRISE and corresponding respectively to the INCI designations 1,2-pentanediol, 1,2-hexanediol, caprylyl glycol and 1, 2-decanediol; or
- Hexasol™ marketed by ARKEMA and corresponding to the INCI designation hexylene glycol.

According to another embodiment, the at least one preservative is a quaternary ammonium chosen from the group comprising behentrimonium chloride, cetrimonium bromide, myrtrimonium bromide, cetrimonium chloride, laurtrimonium bromide, laurtrimonium, steartrimonium bromide, steartrimonium chloride, benzethonium chloride, benzalkonium chloride and mixtures thereof.

According to a particular embodiment, the preservative agent corresponding to a quaternary ammonium is cetrimonium bromide and/or myrtrimonium bromide, advantageously cetrimonium bromide.

By way of example, cetrimonium bromide is marketed by the company MERCK under the trade name RONACARE™ CETRIMONIUM BROMIDE and myrtrimonium bromide is marketed by the company VERTELLUS PERFORMANCE MATERIALS under the name Mytab.

Other preservatives suitable for use in the composition comprising the CSC and/or CSL according to the invention are, for example:
- potassium sorbate (INCI), sodium benzoate (INCI) and benzyl alcohol (INCI) marketed by the company AZELIS UK under the name Paratexin™ KS, Paratexin™ SBG and Paratexin™ BA, respectively;
- p-anisic acid (INCI) and levulinic acid (INCI) marketed by the company COSPHATEC GMBH under the names Cosphaderm™ and Cophaderm™ LA-T, respectively;
- dehydroacetic acid (INCI) and polyaminoprypyl guanide (INCI), marketed by the company LONZA under the names Geogard™ 111A and Cosmocil™ CQ, respectively; or
- phenoxyethanol (INCI) marketed by CLARIANT INTERNATIONAL LTD under the name Phenoxetol™.

According to a particular embodiment, the composition according to the invention comprises between 0.001% and 5% by total weight of the composition of preservative, advantageously between 0.01% and 2%, preferably between 0.1% and 1 %.

Advantageously, the composition also comprises one or more thickening polymers, which can contribute to stabilizing the composition. The thickening polymers according to the invention can be nonionic, anionic, amphoteric or cationic. The basic units of the polymers of the invention can be mono- or disaccharides.

Mention may in particular be made, as polymers capable of being used, of the following native gums, as well as their derivatives:
(a) exudates from trees or shrubs including gum arabic, gum ghatti, gum karaya, gum tragacanth and their derivatives;
b) gums derived from algae including agar, alginates, carrageenans, furcelleranes and their derivatives;
(c) gums obtained from seeds or tubers including guar gum, locust bean gum, fenugreek gum, tamarind gum, konjac gum and their derivatives;
d) microbial gums including xanthan gum, gellan gum, scleroglucan or sclerotium gum, and their derivatives;
e) plant extracts including cellulose, inulin and their derivatives.

Advantageously, the thickening polymers used in the compositions according to the invention are xanthan gum and/or sclerotium gum, advantageously the two gums used simultaneously. For example, the cosmetic raw material AMIGEL^® marketed by the company ALBAN MULLER and corresponding to the INCI designation sclerotium gum can be used as a source of scleroglucan; while the raw material KELTROL CG-SFT^® marketed by the company CP Kelco and corresponding to the INCI designation xanthan gum can be used as a source of xanthan gum.

According to a particular embodiment, the composition according to the invention comprises between 0.01% and 6% by total weight of the composition of thickening polymers, advantageously between 0.1% and 3%.

According to another aspect, the invention relates to a composition as described above for use for protecting the skin, the lips, the hair and/or the mucous membranes against ultraviolet solar radiation.

According to a particular embodiment, the composition according to the invention is used to filter UV radiation between 280 and 400 nm, in particular between 300 and 380 nm.

The invention also relates to the use of a biodegradable copolymer obtained by copolymerization reaction from at least one vegetable oil as defined above, preferably a copolymer corresponding to the INCI designation Brassica Campestris/Aleurites Fordi Oil Copolymer as a solubilizer for at least one lipophilic organic UV screening agent in a cosmetic sunscreen composition which also advantageously contains at least one solubilizer for lipophilic organic UV screening agents.

The invention also comprises a process for solubilizing at least one organic UV screening agent included in a composition, using at least one biodegradable oily copolymer of plant origin.

The way in which the invention can be implemented and the resulting advantages will emerge better from the examples of embodiment which follow, given by way of indication and not limitation.

Examples of embodiments of the invention

The percentages indicated are given by weight of product relative to the total weight of the composition in the tables below.

Example I - O/W emulsion according to the invention - cream

Example II - O/W emulsion according to the invention - sprayable composition

Example III - Tests for the solubilization of high levels of triazine-derived sunscreens by the solubilizers according to the invention and their combinations

III.1 - Aim of the study

The objective of the study is to evaluate the stability of premixes of sunscreen compositions comprising lipophilic organic sunscreens, solubilizers of lipophilic organic filters and increasing doses of a biodegradable oily copolymer of plant origin for a period of 2 months at 4°C and 25°C. In particular, the exclusive presence in the premixes of filters and solubilizers/oils makes it possible to ensure that any crystals observed come from the recrystallization of lipophilic organic sunscreens.

III.2 - Materials and methods

Several premixes (prem) containing lipophilic organic sunscreens and solubilizers of lipophilic organic filters have been prepared. The premixes to be tested were placed in ovens (4°C oven) and at room temperature (25°C) and visually inspected for two months at the following intervals: 7 days, 15 days, 21 months, 1.5 months, 2 months . At the start of the tests, all the premixes were clear solutions; the appearance of crystals was monitored and noted.

Premix 1 (prem 1) does not contain biodegradable oily copolymer of vegetable origin within the meaning of the invention. Increasing amounts (0.5%, 2%, 5%) of BRASSICA CAMPESTRIS/ALEURITES FORDII OIL COPOLYMER were added to premixes 2 to 4. Each premix was made in triplicate.

The tocopherol present in the premixes is carried by the raw materials formulated in the premixes and is present in negligible concentrations.

III.3 - Results and conclusion

The results are summarized in Tables 4 and 5 below.

In the case of premix 1, which contains organic lipophilic filters and lipophilic organic filter solubilizers, but is free of biodegradable oily copolymer of vegetable origin, the recrystallization of the filters was almost immediate, whether at 4°C or 25°C. At 7 days, all the samples were already saturated with crystals. The addition of 0.5% of BRASSICA CAMPESTRIS/ALEURITES FORDII OIL COPOLYMER slowed recrystallization by one week (premix 2), but at 15 days, recrystallization took place at 4°C and room temperature. Surprisingly, the addition of biodegradable oily copolymer of vegetable origin at a concentration greater than 0.5% made it possible to avoid any recrystallization, at 4°C and at 25°C, until the end of the test (premixes 3 and 4).

Claims (19)

Sun composition comprising:
- at least one lipophilic organic UV filter,
- at least one solubilizer for lipophilic organic UV screening agents, characterized in that it further comprises more than 0.5% by weight of a biodegradable copolymer obtained by copolymerization reaction from at least one vegetable oil. Composition according to Claim 1, characterized in that the vegetable oil is chosen from castor oils, rapeseed oils and tung oils. Composition according to Claim 1 or 2, characterized in that the biodegradable copolymer obtained by copolymerization reaction from at least one vegetable oil is chosen from the group consisting of Bis-Isostearoyl Castor Oil/Dimer Dilinoleate Copolymer, Cannabis Seed Oil Dimer Dilinoleyl Esters/Dimer Dilinoleate Copolymer, Castor Oil/Adipic Acid Copolymer, Castor Oil/Dimer Dilinoleic Acid Copolymer, Castor Oil/Sebacic Acid Copolymer. Composition according to Claim 2, characterized in that the biodegradable copolymer is obtained by copolymerization reaction from 2 vegetable oils. Composition according to Claim 4, characterized in that the two vegetable oils are chosen from rapeseed oil, tung oil and castor oil. Composition according to any one of the preceding claims, characterized in that the copolymer obtained by reaction from at least one vegetable oil represents up to 5%, preferably up to 10% by weight of the composition. Composition according to Claim 1, characterized in that the biodegradable copolymer obtained by reaction from at least one vegetable oil corresponds to the INCI designation Brassica Campestris/Aleurites Fordi Oil Copolymer. Composition according to any one of the preceding claims, characterized in that the at least one lipophilic organic UV screening agent is a triazine derivative and is chosen from the group comprising 1,2,4-triazines, 1,3,5-triazines and 1,2,3-triazines. Composition according to Claim 8, characterized in that the at least one sunscreen derived from triazine is chosen from the group comprising the compounds corresponding to the following INCI designations: bis ethylhexyloxyphenol methoxyphenyl triazine, diethylhexyl butamido triazone, ethylhexyl triazone, tris-biphenyl triazine, phenylene bis-diphenyltriazine and bis-isopentylbenzoxazolylphenyl melamine. Composition according to Claim 8, characterized in that it comprises at least the sunscreens derived from triazine corresponding to the following INCI designations: bis-ethylhexyloxyphenol methoxyphenyl triazine, diethylhexyl butamido triazone and ethylhexyl triazone. Composition according to one of Claims 8 to 10, characterized in that the at least one sunscreen derived from triazine represents between 2% and 50% by total weight of the composition. Composition according to Claim 11, characterized in that the at least one sunscreen derived from triazine represents more than 10% by total weight of the composition, advantageously more than 12%, preferably more than 15%. Composition according to one of the preceding claims, characterized in that the solubilizer for lipophilic organic UV screening agents is chosen from the group comprising the compounds corresponding to the following INCI designations: dibutyl adipate, dicaprylyl carbonate, diisopropyl sebacate, caprylyl caprylate/caprate, dicaprylyl ether , coco-caprylate, C12-15 alkyl benzoate, propylheptyl caprylate, butylene glycol dicaprylate/dicaprate, dipropylene glycol dibenzoate, neopentyl glycol diheptanoate, triheptanoin, C12-13 alkyl lactate, ethylhexyl benzoate, C12-C15 alkyl lactate, C12-13 alkyl tartrate , tridecyl salicylate, lauryl lactate, diethyl adipate caprylic/capric triglicerides, diisobutyl adipate, diisopropyl adipate, diethylhexyl adipate, diethylhexyl succinate, propanediol dicaprylate, propylene glycol dicaprylate/dicaprate, isopropyl lauroyl sarcosinate, propylene glycol dibenzoate, hydroxyl dimethoxybenzyl malonate, phenoxyethyl caprylate, isodecyl salicylate, dimethyl capramide and phenethyl benzoate. Composition according to one of Claims 1 to 13, characterized in that it comprises at least the following solubilizers corresponding to the INCI designations: diisopropyl sebacate and dicaprylyl carbonate. Composition according to one of the preceding claims, characterized in that the solubilizers represent between 5% and 80% by total weight of the composition, advantageously between 10% and 70%, preferably between 15% and 60%. Composition according to one of the preceding claims, characterized in that it has a Sun Protection Factor (SPF) equal to or greater than 30, advantageously equal to or greater than 50, preferably equal to or greater than 70, or even equal to or greater than 100. Composition as defined in one of Claims 1 to 15 for use for protecting the skin, the lips, the hair and/or the mucous membranes against ultraviolet solar radiation. Use of a biodegradable copolymer obtained by copolymerization reaction from at least one vegetable oil as a solubilizer for at least one lipophilic organic UV screening agent in a sunscreen composition. Use according to Claim 18, characterized in that the vegetable oil is chosen from castor oils, rapeseed oils and tung oils, advantageously it is a copolymer corresponding to the INCI designation Brassica Campestris/Aleurites Fordi Oil Copolymer.